Jerry Sandusky is taken from the Centre County Courthouse after being sentenced to at least 30 years in prison. (AP)

BELLEFONTE, Pa. — A son of former Penn State assistant football coach Jerry Sandusky is seeking to have his name changed more than a year after his adoptive father was convicted of child sexual abuse.

Matt Sandusky filed papers Tuesday in Centre County Court seeking to have the names of him and his family changed. Though the documents are sealed, they show he filed for a name change, along with his wife and four children.

Matt Sandusky had been expected to be a defense witness until the trial, when he told investigators that he also had been abused by Jerry Sandusky.

Jerry Sandusky was convicted on 45 counts of sexual abuse. He is serving a 30- to 60-year prison sentence and maintains he was wrongfully convicted. He is pursuing appeals.